Mat



FIG. 1 is a top plan view of a mat showing my new design.

FIG. 2 is a bottom view thereof.

FIG. 3 is a cross sectional view thereof.

FIG. 4 is a detail of the raised features in FIG. 3; and,

FIG. 5 is a dimetric projection view thereof. 

CLAIM The ornamental design for a mat, as shown and described. 